老人切忌猛回头老年人多有不同程度的脑动脉硬化，大脑供血偏少，突然扭头，颈动脉受压，血流会减少变慢，还会刺激颈部交感神经，使脑部血管痉挛。这样，大脑出现短暂性缺血、缺氧，会导致头晕、耳鸣、恶心、呕吐等，严重时可能造成昏厥或一侧肢体暂时性瘫痪。多次大脑短... The elderly should not be fierce turn around The elderly have different degrees of cerebral arteriosclerosis, partial less blood supply to the brain, suddenly turned around, carotid compression, blood flow will slow down, but also stimulate the cervical sympathetic, so that cerebral vasospasm. In this way, the brain transient ischemia, hypoxia, can lead to dizziness, tinnitus, nausea, vomiting, severe syncope may cause temporary limb paralysis. Multiple brain short ...